Fixed output for application building and uploading via docker.

 * streaming response from docker builder no longer contain empty lines
 * streaming response from docker registry now filtered by duplicate messages.
Docker-specific documentation has been added.
Managing default timeout on upload tool.
Merge branch 'fix-StrageOutput' into develop

Conflicts:
	cocaine/tools/actions/app.py
Merge branch 'fix-Docs' into develop
Merge branch 'fix-DockerUploadCli' into develop